Hi, If the Firefox profile was deleted, the data stored in that profile(bookmarks, history, passwords, etc.) is usually removed and cannot be recovered. You may still be able to get your data back only in these cases:- * If you were signed into a Firefox account and Sync was enabled, your bookmarks and other data should restore automatically after signing in again. * If you have a backup of your Firefox profile folder, (for example from a system backup), you can restore it manually. If neither sync nor a backup was available, unfortunately, Firefox does not have a way to recover a deletd profile. For the future, it's a good idea to keep Firefox sync enabled so your data stays backed up.